* {
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
}
li {
  list-style: none;
}
/* header区域 */
header {
  width: 100%;
  height: 80px;
  background-color: #07cbc9;
}
header .def {
  width: 1200px;
  height: 80px;
  margin: 0 auto;
}

header .def .logo {
  float: left;
  height: 48px;
  padding: 16px 0px;
}
header .def .logo span {
  display: block;
  height: 48px;
  line-height: 48px;
  font-size: 30px;
  font-weight: bold;
  color: white;
}
header .def nav {
  float: right;
  height: 80px;
}

header .def nav ul li {
  list-style: none;
  float: left;
  font-size: 16px;
  margin-right: 20px;
  line-height: 80px;
  color: white;
}
header .def nav ul li a {
  color: white;
}
header .def nav ul li:last-child {
  margin-right: 0px;
}
/* banner区域 */
.banner {
  margin: 0 auto;
  position: relative;
}
.banner .pic img {
  width: 100%;
  height: 600px;
}
.banner .mask_layer {
  width: 100%;
  height: 600px;
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.5);
}
.banner .form {
  width: 504px;
  padding-top: 100px;
  top: 0;
  left: 50%;
  margin-left: -252px;
  position: absolute;
}
.banner .form form input {
  display: block;
  width: 502px;
  height: 38px;
  border: 1px solid #808080;
  margin-bottom: 20px;
  background: none;
}
.banner .form form input[placeholder] {
  color: #808080;
}
.banner .form form input[value] {
  color: #808080;
}
.banner .form form textarea[placeholder] {
  color: #808080;
}
.banner .form form textarea {
  display: block;
  width: 502px;
  height: 108px;
  border: 1px solid #808080;
  margin-bottom: 20px;
  background: none;
}
.banner .form form input:last-child {
  margin: 0 auto;
  width: 200px;
  height: 40px;
}
/* about区域 */
.about,
.gallery {
  width: 1200px;
  margin: 0 auto;
  padding-top: 30px;
  position: relative;
}
.box1 h2 {
  font-size: 32px;
  text-align: center;
}
.box1 p {
  text-align: center;
  color: gray;
  font-size: 14px;
}
.line {
  width: 60px;
  height: 3px;
  background-color: #07cbc9;
  margin: 10px auto;
}
.about .box2 {
  width: 1200px;
  height: 435px;
  margin: 0 auto;
  padding-top: 30px;
  position: relative;
}
.about .box2 .boxleft {
  padding-top: 10px;
  float: left;
  width: 275px;
  line-height: 40px;
}

.about .box2 .boxmiddle {
  float: left;
  width: 650px;
  height: 435px;
}
.about .box2 .boxright {
  float: right;
}

.about .box2 .boxright ul li {
  list-style: none;
  width: 260px;
  padding: 40px 0px;
  margin-bottom: 30px;
  text-align: center;
  border: 1px solid #07cbc9;
}
.about .box2 .boxright ul li .p1 {
  font-size: 28px;
  font-weight: bold;
}
.about .box3 {
  position: absolute;
  left: 0px;
  width: 300px;
  top: 300px;
  padding: 20px;
  font-size: 18px;
  border: 1px solid gray;
  background-color: rgba(255, 255, 255, 0.5);
}
.p4 {
  display: block;
  width: 140px;
  height: 40px;
  color: white;
  background-color: rgba(0, 0, 0, 1);
  text-align: center;
  line-height: 40px;
  margin: 20px 0px 0px 0px;
}
/* 图文混排区域  */
.words-and-picturs {
  width: 100%;
  overflow: hidden;
  margin-top: 30px;
}
.words-and-picturs ul li {
  float: left;
  width: 25%;
  height: 380px;
}
.words-and-picturs ul li img {
  width: 100%;
  height: 100%;
}
.words-and-picturs ul li.words {
  position: relative;
  background-color: #07cbc9;
}
.words-and-picturs ul li.words h4 {
  display: block;
  margin-top: 20px;
  margin-left: 20px;
  color: white;
  font-size: 24px;
}
.words-and-picturs ul li.words .p2 {
  margin-top: 30px;
  margin-left: 20px;
  color: white;
  font-size: 16px;
}
.words-and-picturs ul li.words .p3 {
  margin-top: 20px;
  margin-left: 20px;
  font-size: 14px;
  color: gray;
}
.words-and-picturs ul li.words .p4 {
  position: absolute;
  width: 138px;
  margin-top: 30px;
  left: 50%;
  margin-left: -69px;
}
.words-and-picturs ul li.words .sanjiao1{
  position: absolute;
  top:50%;
  margin-top:-20px ;
  left: -40px;
  width: 0px;
  height: 0px;
  border: 20px solid transparent;
  border-right-color:#07cbc9;
}
.words-and-picturs ul li.words .sanjiao2{
  position: absolute;
  top:50%;
  margin-top:-20px ;
  right: -40px;
  width: 0px;
  height: 0px;
  border: 20px solid transparent;
  border-left-color:#07cbc9;
}
/* gallery区域 */
.gallery .box2 {
  width: 1160px;
  height: 613px;
  margin: 0 auto;
  padding: 20px;
}

.gallery .box2 dl {
  float: left;
  width: 360px;
  height: 290px;
  margin-right: 40px;
  margin-bottom: 30px;
  position: relative;
}
.gallery .box2 dl:nth-child(3n) {
  margin-right: 0px;
}
.gallery .box2 dl dd {
  position: absolute;
  left: 0px;
  bottom: 0px;
  width: 360px;
  height: 50px;
  background-color: black;
  color: white;
  line-height: 50px;
  text-indent: 20px;
}

.footer {
  width: 100%;
  height: 80px;
  background-color: #07cbc9;
}
.footer p {
  width: 1200px;
  height: 80px;
  text-align: center;
  line-height: 80px;
  margin: 0 auto;
}
